DDI RULE 4381

May 12, 2020

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---

 DESCRIPTION NAME:

Possible Pseudorandom Subdomain Attack - DNS (Response)

 CONFIDENCE LEVEL:

 SEVERITY INBOUND:

 SEVERITY OUTBOUND:

Informational

Low

Medium

High

  OVERVIEW

  TECHNICAL DETAILS

Protocol: DNS

Risk Type: OTHERS
(Note: OTHERS can be network connections related to hacking attempts, exploits, connections done by grayware, or suspicious traffic.)

Threat Type: Suspicious Behavior

Confidence Level: Low

Severity: Low(Inbound)

DDI Default Rule Status: Enable

Event Class: Suspicious Traffic

Event Sub Class: DNS

Behavior Indicator: Suspicious Traffic

APT Related: NO

  SOLUTION

Network Content Inspection Pattern Version: 1.14139.00

Network Content Inspection Pattern Release Date: 23 Apr 2020

Network Content Correlation Pattern Version: 1.14057.00

Network Content Correlation Pattern Release Date: 23 Apr 2020

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